Gametophytes with a central axis on which leave-like structures are borne. Gametophytic tissues include cells specialized for the movement of water and photosynthate. These cells may be homologous to similar tissues in the higher plants; Sporophyte dependent on the gametophyte nutritionally though usually photosynthetic. Free water is necessary for fertilization. The initial gametophytic form after spore germination is a protonema.

Know examples by the common name "moss"

Know the structures seen in lab and be able to interpret questions to reflect your understanding of the moss life cycle

Link to views of hairy-cap moss view of both gametophyte and sporophyte

Link to views of hairy-cap moss with male and female gametophytes and sporophyte

Link to antheridia of Mnium moss (prep. slide)

Link to detail of antheridia

Link to forming sperm in antheridium

Link to archegonia of Mnium moss (prep. slide)

 

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